Air cleaning units; Air cleaning units containing an air filter, ultraviolet lights and a photocatalytic filter; Air filtering installations; Air filters for domestic use; Air purifying apparatus; Fibrous filtering media for general industrial use in the purification of air and industrial fluids; Filtering units for water filtering; Filters made of fiber for water filtration; Filters for drinking water; HEPA filters for household use; Industrial air filter machines; Metal cylindrical chamber and screen for use in filtering and removing settleable solids from liquid; Plumbing fittings, namely, faucet filters; Water filtering devices, namely, water purification installations for waste water and sewage consisting of curtains and textile fabrics; Water filters; Water filtration and purification units and replacement cartridges and filters therefor for specify